On 1/6/21 9:22 AM, David Marchand wrote:

On Sun, Dec 20, 2020 at 10:14 PM Maxime Coquelin
[off-list ref] wrote:

quoted

There is no point it detecting whether we can use MSIX
every time the interrupt is enabled/disabled/masked.

Let's do it once for all at PCI device init time.

Signed-off-by: Maxime Coquelin <redacted>

Is this a rework/fix of fe19d49cb525 ("net/virtio: fix Rx interrupt
with VFIO") ?

Hmm, that was only planned as a rework, but it is likely to introduce a
regression by reverting the fix you mention.

I think I'll have to introduce a new callback so that drivers can update
their status.

Good catch, thanks!
Maxime